仏塔 is read as ぶっとう (buttou) and means stupa.
ぶっとう
buttou
ぶっきょう
Buddhism
ぶつぞう
statue of Buddha
ぶぐ
Buddhist ritual implements (esp. altar fittings)
ふつご
French (language)
ふつぶん
French
ほとけ
merciful person
ふつりょう
French possession
ぶつがく
Buddhist studies
ぶつま
Buddhist family chapel
ぶつぜん
(before a) Buddhist altar
ぶっぽう
Buddhist teachings
ぶつが
Buddhist picture