Noah's Mausoleum, also known as the Tomb of Noah, is a historical and religious monument located in Nakhchivan, an autonomous republic of Azerbaijan. The monument is believed to be the burial place of Noah, who is revered in Judaism, Christianity, and Islam as the builder of the Ark and the savior of mankind from the Great Flood.

The mausoleum was constructed in the 8th century AD and is located on a hill overlooking the city of Nakhchivan. The structure is made of stone and measures approximately 11 meters in height. The exterior of the mausoleum is decorated with intricate carvings and inscriptions, including depictions of animals and mythical creatures.

The interior of the mausoleum features a small room with a cenotaph, which is believed to mark the location of Noah's tomb. The room is also decorated with carvings and inscriptions, including verses from the Quran.

The mausoleum is considered to be one of the oldest and most important religious sites in Azerbaijan, and it attracts thousands of visitors each year. In 2007, it was declared a UNESCO World Heritage Site as part of the "Walled City of Nakhchivan with the Mausoleum of Momine Khatun".