St Mark's Basilica floor plan and map: how to find your way among the Greek cross, narthex and crypt

An almost perfect Greek cross, five domes, a narthex wrapping it on three sides, an upper floor with the bronze horses and a crypt buried below lagoon level. Here is the considered map of St Mark's Basilica, with an optimised 60-minute visit itinerary.

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Tickets and experiences for every area of the basilica

A selection of entry tickets, guided tours and combined accesses to fully cover all areas of St Mark's Basilica: nave, Pala d'Oro, Treasury, Museum and Loggia dei Cavalli.

In short: the floor plan in 30 seconds

Layout
Greek cross (four arms of equal length) with a central dome and four arm domes.
Dimensions
Length 76.5 m, width 62.6 m, central dome height 43 m.
Visitable levels
Three: crypt (below), basilica (ground level), museum + Loggia dei Cavalli (above).
Entrances
Central door (free), Porta dei Fiori (prebooked), Porta Sant'Alipio (exit).
Paid interior areas
Pala d'Oro, Treasury, Museum + Loggia dei Cavalli.
Standard visit time
60 minutes for the full circuit at average pace.

Source: basilicasanmarco.it.

Architectural floor plan of St Mark's Basilica in Venice

The Greek-cross layout: what it is and why

St Mark's Basilica is one of the purest examples of a Greek-cross plan in the West. Unlike the Latin cross (with one much longer arm, typical of Romanesque and Gothic cathedrals), the Greek cross has four arms of roughly equal length arranged around a central point.

The plan comes directly from Byzantine architecture, in particular from the now-destroyed Church of the Holy Apostles in Constantinople. When in 1063 Doge Domenico Contarini ordered the basilica to be rebuilt for the third time, he explicitly chose this Eastern model: a political as well as religious statement.

The features of the plan

Author's tip: stand exactly under the central Ascension dome. From there the Greek-cross plan "reads" itself instantly: in a few metres you see the four arms opening symmetrically.

The areas of the basilica seen from above

Here are the main spaces in logical visit order, starting from outside.

AreaPositionWhat it containsAccess
NarthexWraps the church in a U, west and north sidesOld Testament mosaics, lunettes, sarcophagiIncluded in basic ticket
Central naveWest arm of the crossPentecost dome, marble pavementBasic ticket
CrossingMeeting point of the armsAscension dome (the largest)Basic ticket
North transeptLeft armSt John's dome, access to the MuseumBasic ticket / Museum separately
South transeptRight armSt Leonard's dome, entrance to the Treasury, limited access to the CryptTreasury separate ticket
SanctuaryEast arm, beyond the iconostasisHigh altar, Pala d'Oro, relics of St MarkPala d'Oro separate ticket
CryptBelow the sanctuaryRomanesque underground chapel, ancient doges' tombsSpecial visits or guided tours
MuseumUpper floorOriginal bronze horses, tapestries, detached mosaicsSeparate ticket
Loggia dei CavalliExternal façade, upper floorFour horses (copies), view over St Mark's SquareIncluded in the Museum

The narthex: the basilica's threshold

The narthex is the first space you cross on entering through the Central Door. It is a long, low, dimly lit space running along three sides of the basilica (west, north and partly south). It acts as "decompression" between the light of the square and the mystery of the sacred hall.

In plan, the narthex is made up of a series of square bays, each topped by a small dome. Above every dome, gold-ground mosaics with scenes from the Old Testament: Genesis, Noah, Abraham, Joseph, Moses.

What to do in the narthex

The nave and the transepts

Once past the narthex you enter the main space. The plan is clear:

On the four sides of the central crossing, above the arcades, narrow galleries (matronea) open out: they were reserved for the clergy and are not visitable today.

The sanctuary and the Pala d'Oro in the plan

The sanctuary is separated from the rest of the basilica by the marble iconostasis of 1394. To enter it you need a specific ticket (about €5). Once inside, the route is fixed:

  1. You enter through a side opening to the right of the iconostasis.
  2. You walk clockwise around the high altar.
  3. You arrive in front of the Pala d'Oro, displayed vertically at the back of the altar.
  4. You step down and exit on the left.

The loop takes 5–8 minutes and is visually intense: you see alabaster columns, Byzantine sculptures, ciborium, choir stalls and finally the Pala. It's one of the most concentrated parts of the visit.

The Treasury: where to find it on the plan

The Treasury occupies two small rooms in the south-east corner of the basilica, between the right transept and the sanctuary. The entrance is a bronze door, easy to spot, marked "Tesoro / Treasury".

The two rooms are actually ancient spaces of the adjacent Doge's Palace, absorbed into the basilica after the 11th-century enlargements. The thicker wall is the southern one, which abuts the Doge's Palace.

The crypt: the underground level

Beneath the sanctuary stretches the crypt, a small church within the church: three little aisles, low vaults, a forest of stubby columns. It is the oldest level still visitable, mostly dating from the 11th century.

Here, until 1094, the relics of St Mark were kept: the sarcophagus was later moved upstairs, under the high altar, where it still rests. Many ancient doges and patriarchs of Venice are buried in the crypt.

Access is limited. Lying below sea level, the crypt is frequently flooded and is only opened during dry periods, on special services or in dedicated guided tours.

Author's tip: check well in advance whether you can visit the crypt. It isn't always open and availability is only revealed by booking a tour that explicitly includes it.

The Museum and Loggia dei Cavalli on the upper floor

A narrow staircase in the south transept (or, depending on visitor flow, in the narthex) leads up to the first floor. Here is the Basilica Museum, spread across rooms along the internal galleries and the façade.

The Museum holds the original four gilded bronze horses, ancient masterpieces brought to Venice from Constantinople in 1204. On the outdoor loggia you see copies. There are also 16th-century tapestries, mosaics detached during restorations, illuminated manuscripts and liturgical vestments.

What the external loggia offers

Map of St Mark's Basilica with visit route

Optimised 60-minute visit itinerary

If you have exactly one hour, here's how to budget your time to see everything without rushing.

MinuteAreaActivity
00–08NarthexDomes of Genesis, Noah, Babel. Long view towards Pentecost.
08–15Central navePentecost mosaics, marble pavement.
15–22CrossingAscension dome: stop in the centre and turn.
22–28North transeptSt John's dome. Glance at the matroneum.
28–34South transeptSt Leonard's dome, entrance to the Treasury.
34–45Sanctuary + Pala d'OroClockwise loop, long pause in front of the Pala.
45–55TreasuryMain showcases, chalices and Byzantine icons.
55–60ExitFinal overall look from the south door.

For the "long" 90–120 minute version add 30 minutes of Museum + Loggia dei Cavalli.

The doors: how to enter and where to exit

The west façade (the one facing St Mark's Square) has five large portals. From north to south:

  1. Porta di Sant'Alipio: the leftmost. Above it, the only original medieval external mosaic, depicting the translation of St Mark's body.
  2. Porta di San Pietro.
  3. Central Door: the main entrance for visitors without a booking (free queue).
  4. Porta di San Clemente.
  5. Porta di San Giovanni: the rightmost.

On the north side, towards the Piazzetta dei Leoncini, opens the Porta dei Fiori, reserved for visitors with bookings (skip the line, guided tours). The "prebooked" queue forms here.

Exit usually happens from the south side (towards the Doge's Palace) or from the same Central Door, depending on the day's visitor flow.

Orienting yourself by the compass

The basilica is oriented with the sanctuary (the high altar) towards the east, following ancient Christian tradition. That means:

This mental compass helps you read any printed basilica map without getting confused.

Floor plan numbers to remember

FAQ on the floor plan of St Mark's Basilica

Why does the basilica have a Greek-cross plan and not a Latin one?

By explicit choice of Doge Contarini in 1063, who wanted to reproduce the Church of the Holy Apostles in Constantinople, the Byzantine model par excellence — also as a political gesture of closeness to Eastern Christianity.

Can the crypt be visited?

Only occasionally. Lying below sea level, it is often flooded. Access is reserved for specific guided tours or special openings.

Where do you enter with a booked ticket?

Through the Porta dei Fiori, on the north side of the basilica, on the Piazzetta dei Leoncini. Look for the "Prebooked entrance" sign.

Is the Pala d'Oro included in the basic ticket?

No. To access the sanctuary and see the Pala you need a separate interior ticket of about €5.

How big is the interior?

The Greek-cross plan measures about 76 × 62 external metres; the central dome is 43 metres high.

Can I download a map of the basilica?

The official site basilicasanmarco.it offers printable brochures. At the entrance, staff also hand out free folding maps in the main languages.

Book the full-circuit visit

To explore every area of the basilica — narthex, nave, sanctuary with Pala d'Oro, Treasury, Museum and Loggia dei Cavalli — a ticket that includes the paid accesses or a dedicated guided tour is worthwhile.

See full tickets and tours →