Tikus, Hindu temple in Trowulan Complex, Mojokerto, Indonesia

Tikus is a Hindu temple in the Trowulan Complex in Mojokerto, Indonesia, located 3.5 meters (11 feet) below the current ground level. The site extends roughly 30 by 28 meters (98 by 92 feet) and is built entirely from red brick.

The site remained buried until 1914, when the regent of Mojokerto reported finding small temple structures in a cemetery area. Subsequent excavations gradually uncovered the entire underground complex.

The name "Tikus" (rat) is a local nickname: when the buried structure was found, the spot was said to be a rat's nest. The 17 lotus- and makara-shaped spouts along the base wall, plus three padma spouts on each side pool, are water outlets rather than evidence of a stated rite; scholars still debate whether the pool served the royal family's bathing, Trowulan's water supply, or worship, since the meru-shaped tower suggests a shrine.

The complex sits about 3.5 m below the surrounding ground, reached by a 3.5 m-wide staircase on the north side. The upper walkway is only about 75 cm wide, so passing space is limited. The brick surfaces are uneven and can be slippery after rain; sturdy shoes help.

The name means rat in Indonesian and comes from the rat nests found inside the structure during the first excavation. This unusual naming still recalls the circumstances of the discovery today.